MSE18 Poclain Radial Piston Hydraulic Motor 2812cc 450bar

Product Overview

The Poclain MSE18 (and corresponding MS18) is a modular radial piston hydraulic motor from the MS/MSE series by Poclain Hydraulics, featuring an internal cam-lobe roller-piston design optimized for low-speed, high-torque direct-drive applications. Displacement ranges from 1091 to 2812 cm³/rev, with maximum pressure up to 450 bar, peak torque approximately 17,900 Nm, maximum power of 70 kW, and speeds up to 170 rpm. Our units, including codes such as MSE18-2-G21-F19-1120-J000 and MS18-A-F21-R18-1K26-578EFJP, are manufactured to original specifications, offering 100% interchangeability (flange, shaft end, valving, and dimensions fully match OEM) and 100% simulated-duty testing. They deliver reliable performance under heavy loads, low speeds, high pressure, and harsh conditions as cost-effective direct replacements for genuine Poclain motors.

Technical Specifications 

• Models: MSE18-2-G21-F19-1120-J000; MS18-A-F21-R18-1K26-578EFJP (series configurable with various displacement codes)
• Displacement range: 1091–2812 cm³/rev (full or dual displacement depending on code)
• Max pressure: up to 400–450 bar (depending on MS18 or MSE18 configuration)
• Max torque: up to approx. 17,900 Nm (theoretical torque at 100 bar up to approx. 4,471 Nm)
• Max power: 70 kW
• Max speed: up to approx. 170 rpm (varies by displacement and options)
• Control: Fixed or dual displacement (modular valving system with preferred rotation option)
• Design: Radial piston internal cam-lobe roller design; modular wheel motor or shaft motor
• Inertia: approx. 0.2 kg·m²
• Approx. weight: 112–170 kg (without oil, depending on configuration)
• Options: Integrated parking/service brake, TwinLock anti-skid, speed sensor, etc.

Key Technical Advantages

1. Precision internal cam-lobe and roller-piston design delivers high starting torque, smooth low-speed operation, and excellent volumetric/mechanical efficiency for direct-drive applications without gearboxes.
2. Modular architecture allows flexible configuration of wheel/shaft mounting, brakes, dual displacement, and various valving systems, providing high power density for diverse host machines.
3. High-strength bearings and optimized sealing support high radial loads and continuous heavy-duty operation with low noise and long service life.
4. Full dimensional and performance interchangeability plus rigorous simulated-duty testing guarantee drop-in replacement of original Poclain units, minimizing downtime and lifecycle costs.

Application Areas

Ideal for construction equipment, material handling, agricultural machinery, mining, rail, marine, and industrial drives requiring low-speed high-torque performance. Typical applications include wheel loaders, excavator travel/swing drives, drilling rigs, crushers, forestry machines, port cranes, heavy-duty transporters, and other direct-drive wheel or shaft systems.

Expert Maintenance Tips

• Verify exact match of mounting flange, shaft end (spline or keyed), and valving interface before installation; observe radial load limits for wheel motors.
• Maintain hydraulic fluid cleanliness to recommended levels (typically high NAS 1638 class) using specified viscosity oils; regularly check case drain and brake system pressures.
• For dual-displacement or braked configurations, ensure correct pilot line connections without check valves that could interfere; monitor temperature, speed, and torque during commissioning.
• Periodically inspect rollers and cam for wear; use OEM-spec seals and filters during service and record operating parameters to predict maintenance intervals.